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Proceedings Paper

Influence of hydrogen on (Ne + H2) hollow cathode discharge characteristics
Author(s): V. Mihailov; V. Gencheva; R. Djulgerova; Dimo N. Astadjov; Nikola V. Sabotinov
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Paper Abstract

The Hydrogen influence on (Ne+ H2) hollow cathode discharge plasma characteristics has been studied. The discharge voltage/current characteristics have been registered and the electron temperatures and concentrations have ben measured by using Langmuir's probe technique in both pure Ne and (Ne + H2) hollow cathode discharges as a function of H2 concentration. The Hydrogen negative ion concentration has been obtained by the laser photodetachment method. The results show that small (up to 10%) concentrations of H2 to Ne hollow cathode plasma improve the plasma conductivity and decrease the electron temperature. Negative hydrogen ions occur in (Ne + H2) hollow cathode discharge. Their density with (Ne + 10%H2) discharge is 2 X 108 cm-3 and they should be taken into account for a description of the plasma studied.

Paper Details

Date Published: 7 May 1999
PDF: 5 pages
Proc. SPIE 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications, (7 May 1999); doi: 10.1117/12.347606
Show Author Affiliations
V. Mihailov, Institute of Solid State Physics (Bulgaria)
V. Gencheva, Institute of Solid State Physics (Bulgaria)
R. Djulgerova, Institute of Solid State Physics (Bulgaria)
Dimo N. Astadjov, Institute of Solid State Physics (Bulgaria)
Nikola V. Sabotinov, Institute of Solid State Physics (Bulgaria)


Published in SPIE Proceedings Vol. 3571:
Tenth International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Dimitar V. Stoyanov, Editor(s)

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